Improvement in milk-coolers



J. F. HAW KIN S.

Milk-Coolers.

No` 140,919, f t Patentedmywnas.

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,4M p/foTo-ur/ocHAPH/c C0. N. {(ossomf's PROCESS) UNITED STATES PATENTOFFICE.

JAMESON F. HAWKINS, OF HANNIBAL, MISSOURI.

IMPROVEMENT IN M ILK-COOLERS.

Specification forming part' of Letters Patent No. 140,919, dated July15, 1873; application filed April 22, 1873. y

To all whom it may concern:

Be it known that I, JAMESON F. HAWKINS, of Hannibal, in the county ofMarion and State of Missouri, have invented a newand useful Improvementin Milk-Coolers, of which thefollowin g is a specification:

My invention `relates .to cans or vessels for cooling milk; and theimprovement which I have made therein consists of a can top or coverhaving a funnel-Shape or concave surface to hold the ice and water, andproject within and below the top of the c an to afford a vary ingincreased cooling top surface; a central vertical tube, anda .water-shedor guard, the

vcombinationof which in a top and with a can serves to form a completecooling device, adaptable for calls of different diameters, to shed thewater and keep it from entering the can, so that the top may be filledwith ice or .f placed beneath a running stream, and requires A noattention Whatever, thereby making a highly-convenient, useful, andcheap cooler and market-vessel, as shown in perspective view, Figure 1,of the conical cover, and the section, Fig. 2, as applied to a can.

The milk-receiver may be an ordinary tin, wooden, or earthenware vessel,and the tin cover may or may not (it closely the vessel, as t-hepeculiar construction of the cover adapts itself to vessels ofdiminishing diameters. The cover is complete in itself, combining, as itdoes, the functions of a cap, a water or ice holder, a varying topcoolingsurface, and a central radiating-surface, so that whether it litsthe top of thevessel or not vthe interior conical projecting cover willalways form a seat upon the top of the vessel, as shown in Fig. 2.

The top surface A of the cover is conical or funnel-shaped for twopurposes-to form a receptacle for the ice or water, and an inclinedsurface within the vessel to give the greatest cooling-surface to thevarying 'heights of the milk, which produces a rapid circulation, as thetop surface, by being cooled, has its specific gravityincreased, therebydescending, is

re-supplied by a warmer ascending strand, and

so on until the whole mass is reduced to a uniform temperature. Inconnection with the funnelshaped cooling-topa central tube, B, closed atthe lower end, extends therefrom into the vessel, thereby dividing thediameter of the vessel and increasing the radiating-surface, and at thesame time placing the coldest temperature, by its central position,furthest from the external heat. The conical c'ap has a watershed vorguard, C, to keep the water liowing over and from the open conicalsurface from passing into the vessel, and Whether it its the sides ofthe vessel or not its function in this respect is always a safeguard,for when the cone itself rests upon the vessel the guard overhangs it,and will shed the water entirely, so that it may flow over from arunning stream or large masses of melting ice,

Witnesses:

A. E. H. JOHNSON, J. W. HAMILTON JOHNSON.

